<script src="../jquery.js" type="text/javascript" charset="utf-8"></script>
<style type="text/css" media="screen">
	.highlight { background-color: yellow;}
</style>
<script type="text/javascript" charset="utf-8">
	$(document).ready(function(){
		$("#clickme").click(function(){
			$(this).toggleClass("highlight");
		})
	})
</script>
<div id="clickme">Click to highlight</div>